豪猪雄性生殖腺(睾丸)的解剖及组织结构研究

以豪猪睾丸为研究对象,观察豪猪睾丸的解剖及组织结构,研究豪猪的雄性生殖腺,为豪猪的人工繁殖研究提供理论依据。结果表明:雄性豪猪没有阴囊,其睾丸位于腹股沟内;睾丸的重量为(2.76±0.08)g,其纵径为(3.93±0.09)cm,横经为(1.38±0.06)cm;睾丸小隔不发达,每个睾丸小叶内有1~4条曲精小管,曲精小管的管壁中可见许多不同发育阶段的生精细胞,其形态多样,但精原细胞和精子细胞数量较少,未见次级精母细胞。     

雄性兔狲生殖器官特征

对一例雄性兔狲的生殖器官解剖观察发现：兔狲睾丸的长轴自前上方略斜向后下方。睾丸的头在前、尾在后。左侧睾丸为8．7×5．6×4．2mm，右侧为8．7×5．6×4．8mm。睾丸重0．6g占作重的0．05％；附睾形成一大半圆形覆盖睾丸背侧缘；输精管直径0．7mm，无壶腹部；副性腺有前列腺和尿道球腺，无精囊腺；阴茎长25mm，游离部略呈锥体状，无阴茎骨。     

雄性雏鸵鸟生殖器官的形态学研究

为了探明雄性雏鸵鸟生殖器官的形态学特点,采用石蜡切片和HE染色技术,对6羽45日龄雄性非洲雏鸵鸟的生殖器官进行了研究,并与家禽的相关结构进行了比较。在光镜下观察了雄雏鸟生殖器官的形态结构,结果表明:(1)鸵鸟睾丸没有睾丸纵隔和睾丸小叶,曲精小管中精原细胞排列紧密且整齐,睾丸间质较少;(2)附睾由睾丸网、输出小管和附睾管组成;(3)输精管管壁由黏膜、肌层和外膜3层组成;(4)阴茎由2个圆形的纤维性淋巴体、淋巴间隙和微血管共同构成。     

獭兔生殖器官生长发育规律研究

选择15、30、60、90、120日龄獭兔进行屠宰,测定其睾丸、附睾、阴茎、卵巢、子宫等主要生殖器官的长度和质量,研究獭兔生殖器官发育规律。结果表明：睾丸、附睾、卵巢和子宫生长发育的高峰期均在60-90日龄,阴茎的发育高峰在90日龄以后,且发育平缓。     

公畜外生殖器官先天性异常的分类

生殖器官的先天性异常在睾丸和附睾主要表现为发育不全或形成不全(一侧或双侧睾丸缺失),隐睾、睾丸发育不全,沃尔夫氏管节段性发育不全,旁睾、雄性子宫等。阴囊的先天性异常表现为阴囊发育不全或缺失,两侧阴囊分离和阴囊疝。阴茎和包皮的先天性异常表现为尿道裂口、短阴茎、阴茎系带过短,包皮口狭窄和假两性畸形。     

公鸭和公鹅生殖器官的解剖

本研究解剖成年公鸭和公鹅各5只,对其生殖器官进行了形态学的观察。睾丸位于腹腔内,其体积的大小因鸭、鹅的年龄和性活动时期的不同而发生变化。附睾小。输精管的弯曲度各段不同;输精管与输尿管的并行关系,即使在同一个体也不全相同。阴茎比较发达,主要由二个纤维淋巴体和一个腺管构成。此外,在睾丸、附睾和阴茎内有淋巴组织。 对于成年公鸭和公鹅生殖器官的研究较少,所见资料有Sisson及 Grossman(1975),罗克(1983)和苏东顿(1982)等的有关报道。本研究对成年公鸭和公鹅的生殖器官进行了形态学的观察,为进一步开展鸭、鹅人工授精提供基础资料。     

雄性非洲鸵鸟主要生殖器官的解剖学研究

了解非洲雄鸵鸟主要生殖器官的形态构造，对获取优质多量的精液，改进采精技术和开展鸵鸟的人工授精具有重要意义。本文采用解剖学方法，对雄性鸵鸟主要生殖器官的位置、形态和结构特点进行了系统的研究。结果表明：鸵鸟睾丸呈短棒状，两侧睾丸位置不对称，与其它家禽睾丸的特点有明显的差异；鸵鸟阴茎也很特殊，其阴茎背侧有用于射精的阴茎沟，它不同于哺乳类的尿生殖道，也不同于家禽的螺旋状的排精沟。     

豪猪雌性生殖器官的解剖研究

为了解雌性豪猪的生殖生理,为其发情鉴定、催情技术、人工授精、胚胎移植、体外受精等人工繁殖技术方面的研究提供基础依据,对成年雌性豪猪的生殖器官进行了系统解剖研究。结果表明,雌性豪猪的性腺没有明显的季节性变化,但是在发情周期的不同时期卵巢有不同的变化,当母豪猪发情后,卵巢表面有成熟的卵泡,使整个卵巢体积增大,发情期过后,则卵巢相对缩小。其它生殖器官也都具有各自的解剖特征。     

第二讲 麝鼠的繁殖与育种

<正> 一、生殖器官和繁殖特性 (一)麝鼠的生殖器官 麝鼠的生殖器官有与其功能相适应的特殊构造,公母鼠生殖器官的体积、重量和机能随季节改变呈现出规律性的周而复始的变化,是麝鼠季节性生殖的生理基础。 1.公鼠的生殖器官:由睾丸、附睾、输精管、副性腺和阴茎等组成。     

浅谈鹿鞭加工操作技术

<正>鹿鞭又名鹿冲、鹿茎筋,由雄性成年鹿的阴茎和睾丸组成。传统鹿鞭单指鹿的阴茎。本规程鹿鞭是指鹿的阴茎和睾丸。1撸头将阴茎包皮向后撸,露出完整龟头。2晾干放置在荫凉处自然干燥。3烘干将鹿鞭放入70~80℃烤箱烘烤,每天烘烤2~3h。4鹿鞭的收割将屠宰或机械性死亡后的成年雄鹿,在剥皮时自坐骨弓处割取出阴茎,割破阴囊取出睾丸(带7~10cm精索,龟头端带包皮皮肤1~3cm)。     

豪猪卵巢的解剖及组织结构研究

以豪猪卵巢为研究对象,观察豪猪雌性生殖腺一卵巢的解剖及组织结构,为了解雌性豪猪的生殖生理,为其发情鉴定、催情技术和人工授精等人工繁殖技术研究提供基础理论依据,研究结果表明：豪猪的卵巢外观呈米黄色,左右压扁的椭圆形,其纵径为0．92～1．03cm,横径为0．63～0．72cm,厚为0．33～0．37cm,重量为0．18～0．22g。显微镜下观察卵巢纵剖面上可见3～6个发育的卵泡,整个卵巢体积增大,卵泡至成熟时,卵泡突出于卵巢表面呈半球状。雌性豪猪的性腺没有明显的季节性变化,但在发情周期的不同时期卵巢有不同的变化。     

The gross anatomy of the male reproductive system of a neotropical rodent: the agouti (Dasyprota leporina)

The literature available on the agouti (Dasyprocta leporina) is very limited. The agouti is a Neotropical rodent found in Trinidad and Tobago, Central and South America. This study focuses on one of the many unexplored areas relating to the species, the male reproductive system. The results showed that the mean testicular length, diameter and weight was 3.67 +/- 0.12 cm, 1.67 +/- 0.04 cm and 5.03 +/- 0.52 g respectively. The paired testes and epididymis were found in contact with the abdominal muscles within scrotal pouches, which are evaginations of the caudoventral abdominal wall. The caput epididymis is enclosed by a fat body. The ductus deferens has a mean length and diameter of 10.98 +/- 0.40 cm and 0.14 +/- 0.01 cm respectively. At the urethral end of the ductus deferens the diameter of each duct expends to form the ampulla. The mean diameter of each of the ampulla was 0.25 cm. The accessory sex organs of the male agouti (D. leporina) include the vesicular glands, the coagulating glands, the prostate glands and the bulbourethral glands. The penis of the agouti is U-shaped with a mean length of 9.90 +/- 0.43 cm. The glans penis contains an os penis, a pair of lateral penile cartilages and paired ventral keratinaceous styles.     

Topography of the organs of the pelvic cavity and macroscopic and histologic findings of the sex organs of a male giant anteater (Myrmecophaga tridactyla) with regard to fertility

A study was conducted on the reproductive organs of a male Giant Anteater. Discussed is the specific anatomy with its effect on fertility. The ovoid testicles are characterized by an intraabdominal position throughout life. Histologically documented is the active spermiogenesis. The accessory sexual glands consist of a glandula prostatica, glandula vesiculares and glandulae bulbourethrales. The short penis is situated immediately ventral to the anus. The existing anatomic individualities in comparison to other mammalia result in special reproductive aspects and should be taken into consideration for successful breeding.     

Sonoanatomy of female reproductive organ of Sunda porcupine (Hystrix javanica)

The conventional anatomical study of specimens requires cutting processes which destruct the limited specimens. A non-destructive method, namely an ultrasonography, can be used to assess the anatomical organ information of those specimens. The aim of this research is to analyse the macroanatomy of the female reproductive organ in the Sunda porcupine (Hystrix javanica), using ultrasonographical imaging. In this study, four formaldehyde-fixed reproductive organ specimens of the Sunda porcupine were used. A 10–12 MHz linear ultrasound transducer was utilized to provide an imaging format of both longitudinal and transversal views. Photographic images were then used as comparison with a sonographic image. The results show that the ultrasound image of the Sunda porcupine reproductive organ soft tissue was hypoechoic, the lumen and antrum follicles were anechoic, while atretic follicles and the mons pubis were hyperechoic. Generally, the size of the organ was not significantly different between photographical and ultrasonographical imaging (p > .05). In conclusion, ultrasound images can be utilized for anatomical studies of the Sunda porcupine reproductive organs without destructing the specimen.     

Aspects of the Macroscopic Testicular and Epididymal Morphology in the Greater Rhea,Rhea Americana (Linneaus – 1758) Birds

The purpose of this research was to study the macroscopic testicular and epididymal morphology of the greater rhea. The testicles of 54 greater rhea bred in captivity were utilized. The samples were collected November 2005 (n = 14), December 2006 (n = 20) and May 2007 (n = 20). During commercial slaughter, the testicles and epididymides were collected and their following morphometric parameters were immediately measured: length, width, thickness, circumference, volume, weight of the parenchyma and the tunica albuginea, also aspects such as shape, cavity implantation, relationship with other organs and vascularization. The testicles presented cylindrical shape, with a thin, dense and transparent tunica albuginea, and the vascularization was accomplished by the testicular artery that ramifies from the cranial rectal artery. In the samples from December 2006 and May 2007, the media from the macroscopic measures of the right testicles were volume 58.7 and 14.7 ml, length 9.87 and 3.5 cm, width 2.4 and 0.6 cm, thickness 2.4 and 0.5 cm, circumference 8.0 and 2.3 cm, parenchyma weight 27.6 and 6.1 g and tunica albuginea weight 1.0 and 0.3 g, P < 0.05, respectively. The epididymides, the media from macroscopic measures December 2006 and May 2007 were volume 7.7 and 3.0 ml, length 5.8 and 1.3 cm, width 0.7 and 0.3 cm, thickness 0.6 and 0.3 cm, circumference 2.5 and 1.2 cm, tissue weight 6.4 and 2.8 g and capsule weight 0.4 and 0.1 g, P < 0.05, respectively. Some measures from the right testicle and epididymis were superior to measures taken from the left ones (P < 0.05), but these were not characterizing asymmetry. The morphometric parameters observed during November 2005 remained on an intermediate situation (P < 0.05); however, they were quantitatively closer to the means of December 2006, which may characterize it as a potential transition period between repose and sexual activity. Morphologically, the testicles and epididymides of greater rhea have common points with other researched birds; however, differences were observed. The testicles and epididymides of the Rhea americana are influenced by the environment, presenting reproductive activity season (November–December) during late spring, early summer and sexual repose season (May) during autumn–winter. The morphometric testicular and epididymal measurements were introduced. The morphometric parameters of testicles and epididymides exhibited differences between winter and spring–summer that could be established like sexual activity season.     

TESTICULAR ULTRASOUND IN THE NORMAL DOG

The testicles of ten dogs presented for routine castration were imaged with real time ultrasound. A scanning technique using multiple imaging planes (sagittal, transverse, and dorsal planes) was developed to image the testicles and epididymi. The testes were characterized by a coarse medium echo pattern. The mediastinum testis was consistently seen as a 0.2 cm wide linear hyperechoic structure in the central long axis of the testis. The ability to identify and the appearance of the epididymis was variable. The tail was consistently seen as an anechoic to hypoechoic structure. Ultrasound images were compared for anatomical structure with frozen gross sections. Ultrasonic and gross measurements were made and analyzed. Individual gross and ultrasonic measurements compared favorably. Linear regression coefficients between body surface area versus testicular length and diameter were 0.73 and 0.58 respectively. A Wilcoxin signed rank test for similarity p = 0.33 value was found when comparing the right to the left testicle.